Known more for his producing credits than personal musical output, singer/songwriter Butch Walker has aided in engineering hits for numerous pop luminaries including Pink, Avril Lavigne, Katy Perry and Fall Out Boy.

But Walker is no newcomer to honing his own craft. He formerly fronted Marvelous 3, released a slew of solo efforts and has remained a constant touring staple for nearly two decades.

"Out of Focus" highlights Walker and his band, The Black Widows, as they construct 2011's "The Spade," and also gives rare insight into his personal life.

The documentary made the screening rounds throughout the summer and fall, but only recently became widely available via download and DVD.

"There's a difference to me between a good song and a hit song," Walker explains.

Walker's chart-topping resume speaks for itself. He's co-written two dozen songs which cracked the Billboard Top 100, including No. 1s for Lavigne and Perry.

Why, then, has Walker never charted higher than 105 himself?

"I wasn't 'good boy' enough for pop, and I wasn't 'bad boy' enough for modern rock radio," he said in his autobiography "Drinking With Strangers."

"I'm a mid-level artist, somewhere between flop and big time. (But) once you stop trying so hard and being worried about pleasing others, things seem to fall into place a little more organically and naturally."

"Organic" and "natural" are certainly words to describe Walker's current song writing process. Directors Peter Harding and Shane Valdes capture Walker and company as they hone ideas and prep for live performances.

But "Out of Focus" is no narcissistic puff piece. The film delves into Walker's relationships with ex-band members as well as his wife and family, highlighting the pleasant and not-so pleasant. It also deals with Walker coming to terms with the imminent loss of his father as he steps up to be a better role model for his own son.

Walker may always have to settle with climbing the charts, not as the face on an album, but as a name in the liner notes. "Out of Focus" shows Walker is perfectly fine with that.

"I'm lucky enough to be able to support my family, and to also have a fan base that enjoys what I do enough to keep coming to see me play. It's the best of both worlds."